LAUNCHXL-CC2640R2: Implementing I2C into BLE

September 6, 2019, 7:32 am

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Part Number: LAUNCHXL-CC2640R2

Hello,

I realize I am asking very similar questions on this thread, I'm just not fully understanding how to navigate the code for Bluetooth.

I recently was able to get the I2C working between the CC2640R2 board and a TMP117 sensor and I would now like to implement that code into the simple_peripheral code.

I took a look at Simple Academy Bluetooth tutorial, specifically the "Scanning and Advertising" section and was able to follow along, but am still unsure how or where to begin for what i'd like to do.

Any help would be much appreciated, whatever way it may be, even if it's just to re-read the tutorial.

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CCS/MSP430FR2355: CCS/MSP430FR2355

September 6, 2019, 7:33 am

≫ Next: TLV320AIC3254: Channel phase relationship doesn't change

≪ Previous: LAUNCHXL-CC2640R2: Implementing I2C into BLE

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Part Number: MSP430FR2355

Tool/software: Code Composer Studio

How could I generate sine wave with the help of MSP430FR2355.I am able to get triangular wave with the help of this code but I want to generate the sine wave with the help of the DAC.please suggest me regarding this issues

#include <msp430.h>

unsigned int DAC_data=0;

int main(void)
{
  WDTCTL = WDTPW + WDTHOLD;                 // Stop watch dog timer

  P1SEL0 |= BIT1;                           // Select P1.1 as OA0O function
  P1SEL1 |= BIT1;                           // OA is used as buffer for DAC

  PM5CTL0 &= ~LOCKLPM5;                     // Disable the GPIO power-on default high-impedance mode
                                            // to activate previously configured port settings

  // Configure reference module
  PMMCTL0_H = PMMPW_H;                      // Unlock the PMM registers
  PMMCTL2 = INTREFEN | REFVSEL_2;           // Enable internal 2.5V reference
  while(!(PMMCTL2 & REFGENRDY));            // Poll till internal reference settles

  SAC0DAC = DACSREF_1 + DACLSEL_2 + DACIE;  // Select int Vref as DAC reference
  SAC0DAT = DAC_data;                       // Initial DAC data
  SAC0DAC |= DACEN;                         // Enable DAC

  SAC0OA = NMUXEN + PMUXEN + PSEL_1 + NSEL_1;//Select positive and negative pin input
  SAC0OA |= OAPM;                            // Select low speed and low power mode
  SAC0PGA = MSEL_1;                          // Set OA as buffer mode
  SAC0OA |= SACEN + OAEN;                    // Enable SAC and OA

  // Use TB2.1 as DAC hardware trigger
  TB2CCR0 = 100-1;                           // PWM Period/2
  TB2CCTL1 = OUTMOD_6;                       // TBCCR1 toggle/set
  TB2CCR1 = 50;                              // TBCCR1 PWM duty cycle
  TB2CTL = TBSSEL__SMCLK | MC_1 | TBCLR;     // SMCLK, up mode, clear TBR

  __bis_SR_register(LPM3_bits + GIE);        // Enter LPM3, Enable Interrupt
}

#if defined(__TI_COMPILER_VERSION__) || defined(__IAR_SYSTEMS_ICC__)
#pragma vector = SAC0_SAC2_VECTOR
__interrupt void SAC0_ISR(void)
#elif defined(__GNUC__)
void __attribute__ ((interrupt(SAC0_SAC2_VECTOR))) SAC0_ISR (void)
#else
#error Compiler not supported!
#endif
{
  switch(__even_in_range(SAC0IV,SACIV_4))
  {
    case SACIV_0: break;
    case SACIV_2: break;
    case SACIV_4:
        DAC_data++;
        DAC_data &= 0xFFF;
        SAC0DAT = DAC_data;                 // DAC12 output positive ramp
        break;
    default: break;
  }
}

TLV320AIC3254: Channel phase relationship doesn't change

September 6, 2019, 7:33 am

≫ Next: IWR1642: [High accuracy measurement] How to form mangnitude to relative power (dB)

≪ Previous: CCS/MSP430FR2355: CCS/MSP430FR2355

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Part Number: TLV320AIC3254

Hi. On page 34 of the TLV320AIC3254 Application Reference Guide (SLAA408A) it mentions that Left and Right channels phases can be modified relative to one another for noise cancellation purposes. It says to update Page 0 Register 85. It seems that when I change this value the phase alignment does not change relative to one another. I've tried a few values from 0 to 0x7F. I'm using decimation Filter A and sampling at 44.1K.

Are there any other registers that are not mentioned that need to be modified for this phase modification functionality to work? I am currently sending I2S data directly to a CC2564C and capturing the BT audio stream using a BT sink attached to a scope and judging the phase relationship between the two channels. I expect to see the two channels in perfect alignment relative to one another, then change the register to a larger value (high bit off for the right channel) and expect to see the two channels skewed relative to one another. Right?

Thanks!

IWR1642: [High accuracy measurement] How to form mangnitude to relative power (dB)

September 6, 2019, 7:43 am

≫ Next: LM48511: LM48511 Schematic

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Part Number: IWR1642

Hi,

I'm using High accuracy measurement.

I get output data (fft1Dinput) from range profile and how to transfer (use math) to relative power (dB)?

Thanks!

LM48511: LM48511 Schematic

September 6, 2019, 7:46 am

≫ Next: CCS/TMS320F28069: CCStudio 5.4 trying to get a license transferred from an old PC to a new PC

≪ Previous: IWR1642: [High accuracy measurement] How to form mangnitude to relative power (dB)

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Part Number: LM48511

Hi Team,

Please help check if the circuit needs adjustment.
1. Condition Vin 5V Output 4 ohm 3W~3.5W
2. Is the circuit part value correct?
3. As shown below

thanks

Kevin

CCS/TMS320F28069: CCStudio 5.4 trying to get a license transferred from an old PC to a new PC

September 6, 2019, 7:46 am

≫ Next: WEBENCH® Tools/WEBENCH-POWER-DESIGNER: WEBENCH not opening in Windows 10 Chrome

≪ Previous: LM48511: LM48511 Schematic

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Part Number: TMS320F28069

Tool/software: Code Composer Studio

I have been dragging on windows 7 pro, but that is about to die, so finally moving on to Win 10. Using a XDS 200, so 5.4 needs a license. I had one from purchasing a development board for a 28xx controller that included CCStudio a number of years ago. That license is locked to the ethernet mac ID, and the old computer has lasted way beyond its original expectations. For maintaining legacy, I would like to keep the old 5.4 for the old projects; new ones will be in the latest CCS that is license free. Is there a way to get a license for the old 5.4 so that I do not need to do new projects for the older designs?

All of the TI web pages to get these licenses are broken currently, and the contact links on them are also dead.

Thanks,

Don

WEBENCH® Tools/WEBENCH-POWER-DESIGNER: WEBENCH not opening in Windows 10 Chrome

September 6, 2019, 7:51 am

≫ Next: BQ34Z950: Creating Golden image file

≪ Previous: CCS/TMS320F28069: CCStudio 5.4 trying to get a license transferred from an old PC to a new PC

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Part Number: WEBENCH-POWER-DESIGNER

Tool/software: WEBENCH® Design Tools

The WEBENCH found at the following site all seems to work fine:  http://www.ti.com/design-resources/design-tools-simulation/webench-power-designer.html.  However when I search on a specific non-power part like the LMK03328.....when I click on the "Open Design" button nothing happens.  

BQ34Z950: Creating Golden image file

September 6, 2019, 7:52 am

≫ Next: Do you have a 200degreesC part that has Active Clamp as part of the design.

≪ Previous: WEBENCH® Tools/WEBENCH-POWER-DESIGNER: WEBENCH not opening in Windows 10 Chrome

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Part Number: BQ34Z950

Hello!

I use 3S Li-ion cells 18650 and BQ34Z950.

I successfully completed Learning Cycle (Update status 06). 

I created Golden GG file. I tried to program default .senc file and import data flash from Golden GG file. Then save this like Golden.senc through SMB Pro menu/
After programming this .senc file the battery does not work correctly. 
I tried to find information how to create ROM or DFI file for this IC, but neither bqTester nor BQMtester support this IC. 

Thank you in advance!

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Do you have a 200degreesC part that has Active Clamp as part of the design.

September 6, 2019, 8:06 am

≫ Next: TAS5704: ESD values

≪ Previous: BQ34Z950: Creating Golden image file

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Do you have a high temperature part that has Active Clamp as part of the design. The ambient temperature I am looking at is 200 C.

I would like to design an Active Clamp Flyback converter for 100-200 Vdc input with 24 Volts at 2 A output. Do you have any Active Clamp chip that would survive 200 Degrees Centigrade? Any suggestions?

TAS5704: ESD values

September 6, 2019, 8:28 am

≫ Next: i don't have part number

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Part Number: TAS5704

Hello,

Is it possible to request for the ESD values of this device?
It is mentioned in the datasheet that these devices have limited built-in ESD protection, but it seems there is no information on the exact values.

Thank you!

i don't have part number

September 6, 2019, 8:34 am

≫ Next: LM10506: LM10506 SPI timing

≪ Previous: TAS5704: ESD values

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hello TI Team,

Is there any Automotive Grade(AEC-Qualified)3-channel RGB LED driver which supports only I2C and which can operate in 3.3 to 5v supply voltage? If can you provide me part number?

Thank You in Advance

LM10506: LM10506 SPI timing

September 6, 2019, 8:35 am

≫ Next: DRV10987: PWM Steps

≪ Previous: i don't have part number

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Part Number: LM10506

Hello Sir,

Is there LM10506 SPI timing spec could provide ?

We can't find it from D/S .  Many thanks !

DRV10987: PWM Steps

September 6, 2019, 8:39 am

≫ Next: TAS2552: Dears ，I need an DAC audio amp , input is IIS ,output analog signal for Speaker ,Speaker is 8ohm,2W, powered by dc 4V . if there any device advise recommended ? easy to use ,High performance , many thanks ~

≪ Previous: LM10506: LM10506 SPI timing

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Part Number: DRV10987

Customer has DRV10987 controlled motor up and running.  They have concerns over the PWM range on the part.  Datasheet seems to indicate 512 steps, but they only see the motor react to 256 steps.  Any thoughts on this?  Or potential for this to change in the future?

Regards,
Mark

TAS2552: Dears ，I need an DAC audio amp , input is IIS ,output analog signal for Speaker ,Speaker is 8ohm,2W, powered by dc 4V . if there any device advise recommended ? easy to use ,High performance , many thanks ~

September 6, 2019, 8:44 am

≫ Next: TMDXIDK5718: Not booting from SD card

≪ Previous: DRV10987: PWM Steps

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Part Number: TAS2552

Dears ，I need an DAC audio amp , input is IIS ,output analog signal for Speaker  ,Speaker  is 8ohm,2W, powered by dc 4V . if there any device advise recommended ? easy to use ,High performance , many thanks ~

TMDXIDK5718: Not booting from SD card

September 6, 2019, 8:56 am

≫ Next: TPS62840: TPS62842 / TPS62849

≪ Previous: TAS2552: Dears ，I need an DAC audio amp , input is IIS ,output analog signal for Speaker ,Speaker is 8ohm,2W, powered by dc 4V . if there any device advise recommended ? easy to use ,High performance , many thanks ~

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Part Number: TMDXIDK5718

Hi,

We use to boot Linux form SD card slot in AM5718 idk evm. Off  late we are unable to boot from SD card slot. We have multiple EVM boards and the same sd card boots on other AM5718idks

One particular Idk  has this issue.

We have burned uboot to QSPI and Kernel to eMMC on same idk. In this case we can comfortably boot Linux. So I guess Board has as such no issue other than SD card.

If in insert SD card and try to boot even uboot does not show up. So i guess it still running ROMBoot loader.

I have tested continuity of SD card contact pins to R402,403,404,405,406,407 and  they are intact. On power up CMD, DAT1,DAT2,DAT3,DAT4 are pulled up to VSDMMC (3.3V). I have cross checked 10K pullup resistance too. Also tested the functionality of card detect (CD).  For bringing up uboot do we need this feature??

As i understand VSDMMC = 3.3V is default value fetched by PMIC and ROMBoot loader does not change it.

Is there any other dependency for SD card boot (uBOOT---> Linux)??

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TPS62840: TPS62842 / TPS62849

September 6, 2019, 8:57 am

≫ Next: TPS62840: Power management forum

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Part Number: TPS62840

Hello,

I have a low power application where the regulator should output around 3.6V, input can be anywhere between 3.8 to 6.2V (4 x AAA batteries in series), and the output current is 0.6mAavg, and 2.4mApk.

Is the TPS62842DGR available yet? If not, what is the expected production date?

Also, I could use TPS62849DLC for a fixed 3.4V output (Mouser may get some stock soon) but I can't find any information on the pinout.

Same question applies to the  TPS62842DGR : is the pinout compatible to DGR HVSSOP-8 as per page 4 of the tps62840.pdf - SLVSEC6B –JUNE 2019–REVISED AUGUST 2019 -  data sheet?

Thank you!

 

TPS62840: Power management forum

September 6, 2019, 9:00 am

≫ Next: ADS54J54: Qustion about PCB material

≪ Previous: TPS62840: TPS62842 / TPS62849

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Part Number: TPS62840

Hello,

I have a low power application where the regulator should output around 3.6V, input can be anywhere between 3.8 to 6.2V (4 x AAA batteries in series), and the output current is 0.6mAavg, and 2.4mApk.

Is the TPS62842DGR available yet? If not, what is the expected production date?

Also, I could use TPS62849DLC for a fixed 3.4V output (Mouser may get some stock soon) but I can't find any information on the pinout.

Same question applies to the  TPS62842DGR : is the pinout compatible to DGR HVSSOP-8 as per page 4 of the tps62840.pdf - SLVSEC6B –JUNE 2019–REVISED AUGUST 2019 -  data sheet?

One more question: what's the current into the Enable pin? I need the worst case scenario (max value) sot that I can size the pull-up resistor value to enable the regulator (it will be controlled by an open drain circuit).

Thank you!

 

ADS54J54: Qustion about PCB material

September 6, 2019, 9:00 am

≫ Next: CC3220SF: Code Signing Certificate, SHA1, GlobalSign

≪ Previous: TPS62840: Power management forum

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Part Number: ADS54J54

Hi,

Have you ever qualified ADS54J54 on FR4 PCB? We are doing a board very similar to ADS54J54EVM i.e 500MHz sampling clock on 4 channels with 2 JESD204B Lanes per channel (5Gbps/lane). What I can see you use Magtron 6 for ADC board (lanes are approx. 100mm long to the FMC connector) and FR4 for FPGA board TSW14J50EVM (lanes are much shorter). Our lanes are going to be 50mm long. Could we use FR4? 

By the way is there any equalization going on on any side of the link on the EVMs?

Regards/Ramin

CC3220SF: Code Signing Certificate, SHA1, GlobalSign

September 6, 2019, 9:18 am

≫ Next: TLC555: Absolute Max on output pin

≪ Previous: ADS54J54: Qustion about PCB material

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Part Number: CC3220SF

I read about the difficulty a user had due to SHA2 code signing certificated here:

 e2e.ti.com/support/wireless-connectivity/wifi/f/968/t/810959?

I tried to get a quote from Godaddy for a certificated and they can no longer do the G2 certificated listed in the CA catalog TI provides.

I visited Global Sign and then called to ask about compatibility with the SHA1 requirement and with a sales person's help found that their standard code signing certificate is still optionally available as SHA1 (  the SHA-256 was the default in the order form, but the SHA-1 option is there.)

I have not purchased yet.  I wanted to ask here first.

Has anyone had problems or success with GlobalSign?

TLC555: Absolute Max on output pin

September 6, 2019, 9:20 am

≫ Next: CC3200-LAUNCHXL: File operations example: ReadFileFromDevice reads the fs_demo.txt contents with offset.

≪ Previous: CC3220SF: Code Signing Certificate, SHA1, GlobalSign

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Part Number: TLC555

I am looking at an external voltage transient such as from lightning applied to the output pin. What is the absolute maximum voltage that the output pin can withstand without permanent damage to the device?